All sectors also drove better inbox and read rate performance on Christmas Day emails than for messaging deployed in the two prior weeks.

Also on Christmas Day, we begin to see the ramp-up across all the sectors of email supporting year-end and New Year’s promotions.

The Online group sent more related email, and also improved their inbox performance, but read rate performance eroded somewhat.

Notably, because Amazon is included in the Big 14 group, and their numbers are the same, none of the other major brands in the Big 14 deployed any related promotional email on Christmas Day for either year.

One might conclude from this reporting that the sanctity of Christmas Day evidently neither prevents retail marketers from deploying promotional emails, nor their customers from engaging with those emails.